Aerating pumps for aquaria; Aquarium pumps; Circulating pumps; Electric pumps; Electric pumps for swimming pool, aquarium; Electrical water pumps for swimming pools, spas, baths, and whirlpools; Pneumatic pumps; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Pump impellers; Pumps for counter-current swimming; Refrigerant recovery pumps; Rotary pumps; Submersible pumps; Water aera...